Check this out.
Stubbs the Zombie in Rebel Without a Pulse. (Xbox)
This game is pure awesomeness. If you own and Xbox, and love zombies, this is for you.
The game starts out a little slow, but picks up as you go along. It starts out with this perfect futuristic city in the 50's. No crime, no nothing. And then you come back to life, and stuff. You're guided by a "guidebot" for a little bit and then you're on your own. You cause havoc, and eat brains. As you progress you're able to use this ghastly fart, that incapacitates people for a bit so you can eat their brains. As you get further into the game you can roll your head, and detonate it, throw your stomach and detonate it, and throw your hand and posess people with it.
Levels: Oh my, the levels are so fun, and fresh. They're easy to navigate. For some levels its not free-roaming. there's a path that they want you to take, and they don't want you goin' anywhere else.
Graphics: Could be a little better. But pretty damn spiffy, and gory-ish.
AI: It all depends on the difficulty you choose. But AI is pretty excellent.
Sound: Its a completely original soundtrack. It has some bands do some remakes of some generic 50's songs. And they're pretty sweet.
Overall: If you've been looking for a Zombie game, where you're the zombie, look no further. This is your game. If you're kinda iffy about it rent it. But IMO its a buy.
I give Stubbs the Zombie in Rebel Without a Pulse:
4 out of 5.